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Tony halliday

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Mercedes bens C220 sport coupe 2008
Hi I’m Tony and this is my first post my c220 sport coupe 2008 radio signal
And key fob have stopped working I’ve changed the battery and checked infa red signal and they are fine.The car opens with the key. Is it a fuse issue or something I can do or do I need to take to garage ? Thankyou
 

Craiglxviii

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Sounds like the radio amplifier has broken to me... IR on the key is used for window/ sunroof operation. RF is for lock/ unlock. The signal goes via an amplifier to the relevant SAM.
 
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Tony halliday

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Sounds like the radio amplifier has broken to me... IR on the key is used for window/ sunroof operation. RF is for lock/ unlock. The signal goes via an amplifier to the relevant SAM.
Thankyou is this an easy fix or will a specialist need to look at it ?
 

LostKiwi

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Hi Tony and welcome.

Just to expand on Craigs post.
Does the car unlock if you point the key at the door handle?
 
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Tony halliday

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Hi Tony and welcome.

Just to expand on Craigs post.
Does the car unlock if you point the key at the door handle?
Hi no it doesn’t
 


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